Question

Sederhanakanlah pengurang pecahan berikut ini! ( 1 ) a.7/8 - 3/8 b. 1 5/8 - 1/8 c. 3 5/7 - 1 5/7 d. 6 3/7 - 2 7/9

Answer 1

A) 7/8 - 3/8 == 4/8 = 1/2
b) 1 5/8 - 1/8 = 1 4/8 = 1 1/2
c) 3 5/7 - 1 5/7 = 2
d) 6 3/7 - 2 7/9 = 6-2 (3/7 - 7/9) = 4 (27/63 - 21/63) = 4 6/63 = 4 2/21

Answer 2

1.
a) 4/8 = 1/2

b) 13/8 - 1/8
= 12/8
= 1 4/8
= 1 1/2


c)
26/7 - 12/7
= 14/7
= 2


d)
45/7 - 25/9
= 405/63- 175/63
= 230/63
= 3 41/63